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A zero-emission California perch temperature-controlled nursery method

A zero-emission, perch technology, applied in the field of zero-emission California perch temperature-controlled breeding, can solve the problems of failing to reach California perch, easily polluted water bodies, and increased breeding costs, achieving water temperature control is simple and easy, ensuring high-quality standards, The effect of low access difficulty

Active Publication Date: 2021-05-11
HUAIYIN TEACHERS COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The water temperature in spring in the area north of the Yangtze River is low, which cannot reach the water temperature required for the reproduction of California perch. The local artificial breeding of fry will take until after April. Even if the fry are purchased from Guangdong, it will take until March and they need to be raised indoors temporarily. The outdoor water temperature rises to about 15°C before it can be put into the pond. In these cases, there is a problem that the size of the cultivation in the first year is small and cannot be marketed, and the cultivation in the second year will lead to a longer breeding cycle and higher cost.
California perch is a carnivorous fish. In the past, it was mostly fed with chilled fish or mixed with feed, which was easy to pollute the water body. At the same time, due to the implementation of the national fishing ban, the price of chilled fish continued to rise, and the cost of breeding continued to increase.

Method used

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  • A zero-emission California perch temperature-controlled nursery method
  • A zero-emission California perch temperature-controlled nursery method
  • A zero-emission California perch temperature-controlled nursery method

Examples

Experimental program
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Effect test

Embodiment 1

[0037] In 2018, the zero-discharge California perch temperature-controlled nursery method was adopted for the cultivation of California perch. The breeding process is as follows:

[0038] The zero-discharge California perch temperature-controlled nursery method comprises the following steps:

[0039] S1, site selection and processing: the implementation of the present invention can be carried out in any place where a factory aquaculture workshop is built, and a breeding area and a water treatment area are delineated in the factory aquaculture workshop, such as figure 1 As shown, a plurality of nursery ponds 1 and a plurality of cultivation ponds 2 are set in the breeding area, an artificial wetland is set up in the water treatment area, and a circulating water channel is arranged around the surrounding side of the breeding area, and in the circulating water channel A gate 3 corresponding to the seedling pond 1 and the culture pond 2 is set on the ring side, and the nursery pon...

Embodiment 2

[0058] In 2019, the zero-discharge California perch temperature-controlled seedling method was adopted for the cultivation of California perch. The differences between the cultivation process and Example 1 are:

[0059] When growing seedlings under temperature control, in step S1, in January 2019, the nursery pool and artificial wetland were fully enclosed with plastic film for heat preservation, and the plastic film above the nursery pool was 2.5m higher than the ground;

[0060] In step S4, disinfection and cleaning are carried out 5 days before fry purchase, and quicklime is used for thorough disinfection;

[0061] In step S6, the period when the fry is released is March 2019;

[0062] After the follow-up breeding of large-scale species of California sea bass, in the middle and early October, most of the California sea bass grow to about 400g / tail, which has reached the market size and can be marketed.

[0063] Others are the same as embodiment 1.

[0064] See the table b...

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Abstract

The invention discloses a zero-emission California perch temperature-controlled seedling raising method, which belongs to the technical field of aquaculture and includes site selection and treatment, installation of filtering devices and heating pipes, plant cultivation in artificial wetlands, cleaning and arrangement of seedling ponds, water temperature control, and fish fry In the steps of stocking, breeding management, and large-scale fingerling cultivation, using industrial circulating water facilities, through the joint application of water temperature control technology and water quality treatment technology, the factory temperature-controlled seedlings of California perch are carried out in late winter and early spring to grow large-scale fish. After the fish species are raised, they will be reared in separate ponds outdoors, and they will reach market specifications by the end of September. The present invention can cultivate large-scale California perch seedlings, realize the goal of cultivating and going on the market in the same year, and avoid feeding chilled fish in the whole breeding process, which can save costs.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a temperature-controlled seedling raising method for zero-emission California perch. Background technique [0002] As the construction of ecological civilization has risen to a national strategy, facing the severe situation of tightening resource constraints, serious environmental pollution, and ecosystem degradation, it is necessary to establish the concept of ecological civilization that respects, conforms to, and protects nature, and takes the path of sustainable development. The traditional aquaculture industry takes the path of high input, high output, and high discharge, which has low utilization rate of water resources, high pollution, and is not friendly to the environment. [0003] Modern industrialized aquaculture is the general direction of industrial development. Its basic idea is to achieve zero emissions (Reduce, Reuse, Recycle). The basic requirement is to esta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/10A01G22/00A01G31/00A01G31/02A01K63/00A01K63/04A01K63/06
CPCA01G31/00A01K63/00A01K63/04A01K63/045A01K63/047A01K63/065A01K61/10A01G22/00Y02P60/21Y02P60/60Y02A40/81
Inventor 潘正军强晓刚余祥胜徐敏常国亮朱传坤王辉丁怀宇吴楠
Owner HUAIYIN TEACHERS COLLEGE
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